Hydraulic Brake Master Cylinder Assembly

Keep pedal feel firm and stopping distance short with this OEM‑spec brake master cylinder for Nissan utility platforms. It restores factory braking force, resists fade, and seals the system against moisture intrusion for reliable, everyday use.

Why you need it ️

The master unit is the heart of the hydraulic circuit. Time, heat, and dirty fluid wear the rubber cups and bore. Replacing it brings back a consistent pedal, stable line pressure, and balanced braking at all four wheels.

How it works ⚙️

Pressing the pedal moves a pushrod that drives primary and secondary pistons. That converts foot force into hydraulic pressure, sending fluid from the reservoir into two circuits. Caliper pistons clamp the pads, delivering smooth, controlled stops even under load.

If it fails ⚠️

Symptoms include a spongy or sinking pedal, longer stopping distance, uneven braking, warning lamp, or brake fluid at the booster. Internal bypass reduces pressure; external leaks pull in air. Driving like this risks sudden loss of braking power.

Tech notes

Bench‑bleed before installation, use fresh DOT 3/4 fluid, tighten line fittings to spec, and bleed all wheels for a high, firm pedal. Replace any damp hoses and flush old fluid to extend service life.

Compatibility

• Safari Pick Up